20266552 has 16 divisors (see below), whose sum is σ = 38521440. Its totient is φ = 9994176.

The previous prime is 20266537. The next prime is 20266553. The reversal of 20266552 is 25566202.

It is a self number, because there is not a number n which added to its sum of digits gives 20266552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16768 + ... + 17935.

It is an arithmetic number, because the mean of its divisors is an integer number (2407590).

Almost surely, 2^20266552 is an apocalyptic number.

It is an amenable number.

20266552 is a deficient number, since it is larger than the sum of its proper divisors (18254888).

20266552 is a wasteful number, since it uses less digits than its factorization.

20266552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34782 (or 34778 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 20266552 is about 4501.8387354502. The cubic root of 20266552 is about 272.6423328482.

The spelling of 20266552 in words is "twenty million, two hundred sixty-six thousand, five hundred fifty-two".